AIKIDO-2026-720159
electron is vulnerable to Insufficient Verification of Data Authenticity
78
High Risk
This Affects:
electronTL;DR
Electron's cache for sandboxed preload scripts did not verify that a cached entry actually matched the preload it was being served for. A compromised renderer could plant a cache entry that later gets served and executed as a different preload script, running its own code in the preload context on a later load. This only requires an already compromised renderer to write the poisoned cache entry. The fix validates cached preload entries against browser recorded source data and isolates entries by frame, site, BrowserContext, and process lock.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you load untrusted content in a renderer.
Background info
electron is vulnerable to Insufficient Verification of Data Authenticity in versions 42.3.3 - 42.9.3 and 43.0.0 - 43.4.1.
How to fix this
Upgrade the electron library to the patch version.
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SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
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